随机1－集压缩算子的随机不动点指数和随机不动点定理

在［１］中我们建立了随机拓扑度并得到系列新的随机不动点定理，本文建立了随机１－集压缩算子的随机不动点指数理论，得到一些新的随机不动点定理，为研究各类随机方程提供一些存在性原理，给出了在随机Ｈａｍｍｅｒｓｔｅｉｎ积分方程的应用．     

随机1—集压缩算子的随机不动点指数和随机不动定理

在［１］中我们建立了随拓扑度并得到了系列新的随机不动点定理。本文建立了随机１－集压缩算子的随机不动点指数理论，得到一些新的随机不动点定理，为研究各类随机方程提供一些存在性原理，给出了在随机Ｈａｍｍｅｒｓｔｅｉｎ积分方程的应用。     

随机弱内向映射的多个随机不动点定理

利用随机不动点指数理论及Banach常微分方程理论的随机结果,证明了关于随机弱内向映射一个随机三解定理.     

关于随机算子若干问题的研究

研究了新的随机不动点指数的计算问题,利用随机不动点指数的理论推广了著名的Amann定理.提出了随机算子的随机渐进歧点的新概念,并且研究了随机k(ω)-集压缩算子的随机渐进歧点的一些问题,也得到了若干新的结果.     

一个一般的多值随机算子的随机不动点定理

近年来,由于理论和应用上的需要,随机不动点定理的研究获得了很大进展.许多重要的不动点定理的随机类比已相继得到证明。本文的定理2.1是一个一般的随机不动点定理,它推广了重要的 Chuong 的结果.利用这个定理,结合非随机不动点定理立即可以得到许多非随机不动点定理的随机类比.例如,[1,2,4,6]中的结果都是本定理的特例。     

序压缩映射的随机不动点定理

在Banach空间中利用一个随机Mann迭代序列组,讨论了随机映射的随机不动点的存在性问题,得出了几个随机不动点定理,改进了相关文献中的相应结果.     

随机收缩偶,随机收缩与随机算子方程的解

本文引入随机收缩偶,讨论具有随机定义域的随机集值(单值)算子方程公共随机解的存在性,建立随机收缩理论与公共随机不动点理论的联系,统一和推广了这两个方向的主要结果。 关健词:随机算子;方程;公共不动点。     

有关不连续随机增算子的随机不动点

本文利用Zorn引理和锥理论,研究了不连续随机算子的随机不动点的存在性问题,得到了几个有关不连续随机增算子的随机不动点定理.     

一类随机不动点定理及其特例

在随机拓扑度的基础上进一步研究了随机不动点问题,得到了若干新的随机不动点定理.作为特例,也给出了相应的确定性算子的边界不动点定理.     

实Banach空间中锥上的随机副近和随机不动点定理

本文在实Ｂａｎａｃｈ空间的锥上证明了集值映射的随机逼近定理，作为应用，讨论了几个随机的不动点定理，我们的工作推广了Ｌｉｎ，Ｓｅｈｇａｌ和Ｓｉｎｇｈ的结果。     

随机算子的若干新结果

本文研究了随机半闭1－集压缩算子和随机凝聚算子的随机不动点问题，推广了Leggett和Williams的若干定理。     

Random fixed points of pseudo-contractive random operators

The paper presents new random fixed point results for pseudo-contractive random operators.     

Random Coincidence Point Theorem in Fréchet Spaces with Applications

Abstract

We proved a random coincidence point theorem for a pair of commuting random operators in the setup of Fréchet spaces. As applications, we obtained random fixed point and best approximation results for *-nonexpansive multivalued maps. Our results are generalizations or stochastic versions of the corresponding results of Shahzad and Latif [Shahzad, N.; Latif, A. A random coincidence point theorem. J. Math. Anal. Appl. 2000, 245, 633–638], Khan and Hussain [Khan, A.R.; Hussain, N. Best approximation and fixed point results. Indian J. Pure Appl. Math. 2000, 31 (8), 983–987], Tan and Yaun [Tan, K.K.; Yaun, X.Z. Random fixed point theorems and approximation. Stoch. Anal. Appl. 1997, 15 (1), 103–123] and Xu [Xu, H.K. On weakly nonexpansive and *-nonexpansive multivalued mappings. Math. Japon. 1991, 36 (3), 441–445].     

序Banach空间中的随机不动点定理

该文获得了序Banach空间中随机序压缩映射存在不动点的充要条件.利用随机Mann迭代序列,给出了几个随机不动点收敛定理,改进了最近文献的相应结果.     

Random Ishikawa Iterative Sequence with Applications

Abstract

The purpose of this paper is to construct a random Ishikawa iterative sequence for random strongly pseudo-contractive operator T in separable Banach spaces and to study that under suitable conditions this random iterative sequence converges to a random fixed point to T.     

FIXED POINTS FOR WEAKLY INWARD MAPPINGS IN BANACH SPACES （II）

S. Hu and Y. Sun[1] defined the fixed point index for weakly inward mappings, investigated its properties and studied fixed points for such mappings. In this paper, following S. Hu and Y. Sun, we further investigate boundary conditions, under which the fixed point index for i（A, Ω, p） is equal to nonzero, where i（A, Ω, p） is the completely continuous and weakly inward mapping. Correspondingly, we can obtain many new fixed point theorems of the completely continuous and weakly inward mapping, which generalize some famous theorems such as Rothe＇s theorem, Altman＇s theorem, Petryshyn＇s theorem etc. in the case of weakly inward mappings. In addition, our conclusions extend the famous fixed point theorem of cone expansion and compression to the case of weakly inward mappings. Moreover, the main results contain and generalize the corresponding results in the recent work[2].     

Random fixed points of asymptotically nonexpansive random operators on unbounded domains

The aim of this paper is to prove some random fixed point theorems for asymptotically nonexpansive random operator defined on an unbounded closed and starshaped subset of a Banach space.      

A RANDOM FIXED POINT ITERATION FOR THREE RANDOM OPERATORS ON UNIFORMLY CONVEX BANACH SPACES

In the present paper we introduce a random iteration scheme for three random operators defined on a closed and convex subset of a uniformly convex Banach space and prove its convergence to a common fixed point of three random operators. The result is also an extersion of a known theorem in the corresponding non-random case.